Meg Ryan's Sally was proving a point to Billy Crystal's Harry that women can indeed simulate pleasure without actually being satisfied, and her performance was so convincing, another customer wanted to "have what she's having."

But what would happen if that scenario was repeated in real life? Better yet, what would happen if not one, but 20 women pretended to orgasm simultaneously in the middle of Katz's lunch rush?

Improv Everywhere set to find out.

The organization says on its website that the employees at Katz weren't aware that a loud, uninhibited flash mob had descended on the restaurant, but everyone seemed to be amused by the show.